This is an academic journal sponsored by the Chinese Optical Society. The main contents it carries include the latest research achievements, the research front and progress in spectrum measurement of laser, infrared, Raman, vibration, ultraviolet, visible, emission, absorption, X-ray and fluorescence spectrum. There are such columns as papers on high-tech research, research briefing, summary and review, instrument and device, new instruments, issues for discussions, book review, and information on academic activities. It is intended for readers from various fields, such as metallurgy, geology, machinery, environmental protection, national defense, medicine, agriculture and forestry, chemical industry, and commodity control.